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maks197457 [2]
4 years ago
11

What is a scientific notation?

Mathematics
1 answer:
kirza4 [7]4 years ago
6 0

Answer:

Scientific notation is a way of writing long numbers, often with a lot of zeros, in a shorter and easier to read format.

Step-by-step explanation:

As an example I will use 360

first move the decimal so the number is larger than one but less than ten

So the number will be 3.60

to make it equal to 360 it would be 3.6 x 10^2 multiplying 3.6 by 10 to the power of 2 will make it 360. for a more in depth and probably better explination I would check khan academy.

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Find the y-intercept of an equation whose slope is 2 and has the point (1, 5)
katrin [286]

Answer:

The y-intercept is 3.

Step-by-step explanation:

I had to use a graph but if you mark the point on the graph. The slope is 2 so you would go up 2 right 1. But you can also do it the opposite way, go down 2 left 1. I hope this helps!

6 0
3 years ago
A recipe calls for one egg to serve every four people. It also requires two tbsp of salt for every five eggs used. If you are co
JulijaS [17]

Answer:

30 tsp

Step-by-step explanation:

400÷4=75

75÷5=15

15x2=20

7 0
3 years ago
Read 2 more answers
Fill in the blanks to complete this proof of theorem 2-3.
Basile [38]

Answer:

Therefore.

angle 1 is congruent to angle 3 ...Proved

The proof with steps are below with Fill in the blanks

Step-by-step explanation:

Complementary Angles:

Two angles are Complementary when they add up to 90 degrees.

Example 40° and 50° are Complementary Angles.

If 'x' and 'y' are Complementary Angles the we have

x+y=90\°

Here,

Given:

angle 1 and angle 2 are complementary

angle 3 and angle 2 are complementary

To Prove:

angle 1 is congruent to angle 3

Proof:

Step 1:

angle 1 and angle 2 are complementary and angle 3 and angle 2 are complementary because it is Given.

Step 2:

By the definition of complementary angles,

m of angle 1 + m of angle 2 = _90°__ and m of angle 3 + m of angle 2 = _90°_.

Step 3:

Transitive Property of Equality.

Then m of angle 1 + m of angle 2 = m of angle 3 + m of angle 2 by the Transitive Property of Equality.

Step 4:

Subtract m of angle 2 from each side. By the Subtraction Property of Equality, you get

m\angle 1 +m\angle 2-m\angle 2=m\angle 3+m\angle 2-m\angle 2

m\angle 1=m\angle 3

m of angle 1 = _measure of angle_3_.

Step 5:

Angles with the same measure are _Congruent__,

Step 6:

so angle 1 is congruent to angle 3.

Therefore.

angle 1 is congruent to angle 3 ...Proved

6 0
3 years ago
Pls answer and explain how you got it - i will mark brainliest<br> (just answer #28)
Akimi4 [234]

Answer:

5 x^2 y^ (-3) z = ?

Step-by-step explanation:

We know the volume of a rectangular prism is given by

V = l*w*h

V = 2x^2 * y^-2 * ?

We are given the volume

V =10x^4 y^-5 z

Set  the two equal

10x^4 y^-5 z = 2x^2 * y^-2 * ?

Divide each side by 2x^2 y^-2

10x^4 y^-5 z /2x^2 y^-2 = 2x^2 * y^-2 * ?/2x^2 * y^-2

10x^4 y^-5 z/ 2x^2 y^-2 = ?

Simplifying

10/2  * x^4/x^2  y^-5/ y^-2  z = ?

We know that a^b/ a^c = a^(b-c)

5 x^ (4-2) y^(-5 - -2) z = ?

5 x^2 y^ (-5 +2) z = ?

5 x^2 y^ (-3) z = ?

4 0
3 years ago
Read 2 more answers
Kiron earns $6 more than 3 times what her mother earned at her age working. If
svet-max [94.6K]

Answer: Kiron's mother earned 4 dollars an hour when she was Kiron's age.

Step-by-step explanation: Let k be Kiron's pay and m be her mother's pay.

From this, we can derive the equation k=3m+6, and since we know k=18 we get

3m+6=18

3m=12

m=4

5 0
3 years ago
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